French Commercial Lease ADR: Five Distinct Routes
French law gives landlords and tenants in commercial lease disputes a wide range of alternatives to full litigation. Each route has a different scope, different binding effect, and different relationship to the courts. Understanding which mechanism is appropriate — and which disputes it can resolve — is essential before choosing a strategy.
The Departmental Conciliation Commission
Scope and Composition
The commission départementale de conciliation is a statutory bipartite body composed of landlords and tenants in equal numbers, plus qualified persons. Its mission is to attempt to conciliate the parties and issue a non-binding opinion (C. com. Art. L 145-35 al. 1). Referral is optional: the 2014 Pinel reform replaced "sont soumis" with "peuvent être soumis", definitively confirming that the commission is not a compulsory preliminary step before litigation (Cass. 3e civ. 10-3-2010 n° 09-10.344).
The commission has jurisdiction over: disputes relating to rent on a renewed lease; triennial rent revision; charges; and works. Its competence on rent is limited to disputes concerning the capping rule (plafonnement) of Arts. L 145-34 and L 145-38: it cannot adjudicate on uncapped rent determination where the sole issue is rental value under Art. L 145-33. It has no jurisdiction over leases that fall outside the capping rule (bare land, monovalent premises, offices).
Procedure and Effect of the Commission's Opinion
The commission is seized by recorded delivery letter to its secretariat. It convenes the parties by recorded delivery at least fifteen days in advance. It issues its opinion even if the parties, though duly convened, do not appear (Art. D 145-17). Parties may be represented by a specially authorised person or a lawyer, though a representative without a specific power of attorney may not accept a transaction.
Where court proceedings are commenced alongside the commission, the judge must stay proceedings until the commission has issued its opinion, subject to a three-month maximum; after that, the commission is automatically discharged and the court may rule (Art. L 145-35 al. 2 and 3). Where only the court has been seized and the defendant refers to the commission before the hearing date, the same stay applies; but if the commission has not been seized by the hearing date, no stay arises and the case proceeds (Cass. 3e civ. 3-2-1993 n° 90-20.346). A referral to the commission does not interrupt the two-year prescription of Art. L 145-60 (Cass. 3e civ. 18-2-1998 n° 96-14.525).
Where the parties reach an agreement, it binds them without any further formality; the original lease continues and no new lease document is needed (Cass. 3e civ. 14-6-1995 n° 93-14.769). The agreement can be homologated for enforceability. The commission's opinion in the absence of agreement is purely consultative and does not bind the court.
Mediation, Conciliation and the Settlement Audience
Conventional Mediation and Conciliation
Conventional mediation is any structured process by which two or more parties attempt to reach an amicable resolution with the assistance of a neutral third party, outside any judicial proceedings (CPC Art. 1530). The prescription period is suspended from the date of the written agreement to mediate, or from the first meeting absent a written agreement (C. civ. Art. 2238 al. 1). It remains suspended until the process ends, with a minimum of six months remaining in the prescription period after suspension lifts.
A mediation clause in the lease requiring the parties to attempt mediation before bringing proceedings is valid and may be raised by the defendant as an inadmissibility (fin de non-recevoir) (Cass. ch. mixte 14-2-2003 n° 00-19.423 ; Cass. ch. mixte 12-12-2004 n° 13-19.684). An agreement reached in conventional mediation, countersigned by the lawyers of each party and bearing the court's executory formula, constitutes an enforceable title directly (C. exécution Art. L 111-3, 7°) — no judicial homologation is required in that case. Otherwise, parties may seek homologation by the competent court, which may not modify the terms of the agreement (CPC Art. 1565).
Judicial Mediation and Conciliation
Once proceedings are underway, the judge may at any stage — including in référé proceedings — propose mediation or conciliation to the parties, or appoint a mediator with their consent (Loi 95-125 Art. 22; CPC Art. 131-1). For claims of €5,000 or less before the tribunal judiciaire, an attempt at conciliation, mediation, or participatory procedure is a mandatory prerequisite on pain of inadmissibility (CPC Art. 750-1, reinstated from 1 October 2023). Judicial mediation runs for a maximum of three months, renewable once (CPC Art. 131-3).
The Settlement Audience (Audience de Règlement Amiable)
Since 1 November 2023, proceedings before the tribunal judiciaire may be interrupted for a judicial settlement audience, introduced by Décret 2023-686 of 29 July 2023. This mechanism was extended to the tribunal de commerce and the juge des loyers commerciaux from 1 September 2024 (Décret 2024-673 of 3 July 2024; C. com. Art. R 145-29-1). The instance is formally interrupted on the convocation decision. The audience is conducted by a judge who does not sit in the trial formation, in chambers, without the court clerk. The judge may review the parties' submissions and evidence, visit the premises, and hear the parties separately.
Everything said, written, or done in the settlement audience is confidential, subject only to an exception for disclosure necessary for implementation of any agreement reached (CPC Art. 774-3). Where an agreement is reached, the presiding judge records it in a signed procès-verbal whose extracts are immediately enforceable as a title (CPC Arts. 130 and 131 al. 1).
The Participatory Procedure
The participatory procedure (C. civ. Arts. 2062 to 2068; CPC Arts. 1542 to 1564-4) allows parties, assisted by their lawyers, to attempt jointly to reach an agreement through a procedure they structure by contract. It may precede litigation entirely or run alongside it for the purpose of case preparation. Prescription is suspended from the date of the participatory convention until it ends, with a minimum of six months remaining after suspension. Where only partial agreement is achieved, the judge homologates the partial agreement and rules on the residual dispute.
The Mandat d'Intérêt Commun: Expert Determination of Rent or Eviction Indemnity
What It Is and How It Differs from Arbitration
The mandat d'intérêt commun is a technique by which the parties jointly mandate a third party to fix a contractual element — the lease rent or the eviction indemnity — rather than to resolve a pre-existing dispute (C. civ. Art. 1592). The Cour de cassation validated this mechanism for commercial leases (Cass. com. 8-5-1961 ; Cass. 2e civ. 9-6-1961). The distinction from arbitration is fundamental: the expert appointed under a mandat d'intérêt commun does not resolve a dispute; they fix, in lieu of the parties, a term of their agreement. Where a lease provides that the renewal rent shall be fixed by a panel of three experts, this constitutes a mandat d'intérêt commun, not an arbitration clause, and the experts' determination has contractual force (Cass. 3e civ. 4-3-1998 n° 96-16.671).
Binding Force and the Gross Error Limit
By submitting to the third party's determination, the parties make it their law. Courts will not substitute their own assessment for that of the expert (Cass. com. 12-6-2007). The determination can only be set aside in three circumstances: gross error (erreur grossière) by the expert; fraud (dol) or duress (violence); or the expert exceeding their mandate. Gross error is the error that a normally diligent technical professional in their field would not commit. Cumulating the results of two valuation methods and thereby double-counting the same asset has been held to constitute a gross error (Cass. 3e civ. 12-3-2020 n° 19-10.245). The expert's liability to the parties is governed by ordinary mandate law regardless of whether a gross error exists in the determination itself (Cass. com. 4-2-2004 n° 01-13.516).
Practical Limitations
The main drawback of the mandat d'intérêt commun is that the expert, acting in lieu of both parties, is not subject to the adversarial principle. Parties have no right to present their arguments or challenge each other's positions before the expert's determination. For eviction indemnity fixing in particular — which turns on complex factual and legal assessments — this absence of adversarial process can have significant consequences. Major institutional landlords have addressed this by drafting detailed expert determination clauses that prescribe the method, the comparables to be used, and the expert selection procedure.
Arbitration in French Commercial Lease Disputes
What Is Arbitrable in a French Commercial Lease Context
Parties may agree to submit to arbitration all rights they freely dispose of (C. civ. Art. 2059). Provisions of the commercial lease statute that do not involve ordre public are arbitrable: rent-fixing on renewal, eviction indemnity determination (where the right is not in dispute), and all questions of ordinary lease contract law such as repair obligations and charges. A clause compromissoire is not void merely because the dispute involves public order provisions — the arbitrator may apply mandatory rules and is subject to the oversight of the juge de l'annulation (Cass. com. 9-4-2002 n° 98-16.829).
However, where the legislature has expressly allocated a dispute to the exclusive jurisdiction of the juge des loyers or the tribunal judiciaire as part of the same statutory corpus as the public order rule — for example, triennial revision under Art. L 145-37 and Art. R 145-20, or despecialisation under Art. L 145-52 — arbitration of that specific dispute is excluded (Cass. 3e civ. 26-2-1969 ; Cass. 3e civ. 25-11-1975). A clause compromissoire that purports to remove the acquisition of the resolutory clause from judicial oversight — thereby circumventing Art. L 145-41 — is null (CA Montpellier 21-12-2011).
The Arbitration Clause (Clause Compromissoire)
A clause compromissoire commits parties to submit future disputes arising from the lease to arbitration. Since the 2016 reform of Art. 2061 of the Civil Code, an arbitration clause may in principle be agreed outside a professional context — but where one party did not contract in the course of their professional activity, the clause is unenforceable against that party (inopposable, not null). The clause must be in writing (CPC Art. 1443). Professional character is assessed party by party: a retired merchant who sold their business and simultaneously granted a commercial lease to the buyer was held not to have contracted in the course of a professional activity, making the arbitration clause null (Cass. 1e civ. 29-2-2012 n° 11-12.782).
Parties may limit the scope of the arbitration clause to specific categories of dispute. Institutional or ad hoc arbitration is available. Arbitrators may be empowered to act as amiables compositeurs (deciding by equity rather than strict law) — though even amiables compositeurs must invoke public order rules of their own motion (CA Paris 16-3-1995). A compromis d'arbitrage (submission agreement for an existing dispute) may also be concluded after the dispute has arisen; it must identify the object of the dispute and designate the arbitrator(s), on pain of nullity.
Across all ADR mechanisms in French commercial lease disputes, the same route to enforceability applies: an agreement countersigned by the lawyers of all parties and bearing the formule exécutoire of the competent court clerk constitutes an enforceable title directly under Art. L 111-3, 7° of the Code des procédures civiles d'exécution — no judicial homologation is needed. Where lawyers have not countersigned, homologation by the judge is required; the judge may homologate but may not modify the terms of the agreement.
Whether you need to invoke a mediation clause, refer a rent dispute to the conciliation commission, structure a mandat d'intérêt commun, or draft an arbitration clause, the right route depends on the nature of the dispute and the timing of the proceedings.
Speak with a French LawyerThis article is for general information and educational purposes only. It does not constitute legal advice. Laws may have changed since publication. Always seek qualified French legal advice before initiating or responding to ADR proceedings in a commercial lease context.
Key Legal References
Conciliation commission: optional since 2014 — referral to the commission is not a compulsory preliminary step before litigation.
Referral to the commission de conciliation does NOT interrupt the two-year prescription of Art. L 145-60.
Mediation clause valid and raises an inadmissibility (fin de non-recevoir) if not complied with before proceedings.
Prescription suspension during mediation: suspended from the written agreement or first meeting; minimum 6 months remaining after suspension lifts.
Mandatory ADR for claims €5,000 or less before the tribunal judiciaire, on pain of inadmissibility. Reinstated from 1 October 2023.
Audience de règlement amiable extended to the tribunal de commerce and the juge des loyers commerciaux from 1 September 2024.
Agreement countersigned by lawyers bearing the executory formula constitutes an enforceable title directly — no judicial homologation required.
Mandat d’intérêt commun for rent fixing: the experts’ determination has contractual force as if agreed by the parties themselves; it is not an arbitration clause.
Gross error in expert determination: cumulating the results of two valuation methods and thereby double-counting the same asset constitutes a gross error.
Expert’s liability to the parties is governed by ordinary mandate law regardless of whether a gross error exists in the determination itself.
Arbitration: a clause compromissoire is not void merely because the dispute involves public order provisions — the arbitrator may apply mandatory rules subject to annulment review.
Arbitration clause purporting to remove the acquisition of the resolutory clause from judicial oversight violates Art. L 145-41 and is null.
Arbitration clause: professional activity assessed party by party; a retired party who did not contract in the course of a professional activity cannot be bound by the clause.
